The usage or vocabulary that is characteristic of a specific group of people.
The immigrants spoke an odd dialect of English.
2) Idiom NounIdiomatic Expression, Phrasal Idiom, Phrase, Set Phrase
An expression whose meanings cannot be inferred from the meanings of the words that make it up.
Smart - showing mental alertness and calculation and resourcefulness; "Don`t try to be smart, be smart".
Lose - fail to win; "We lost buddy".
Mole - small velvety-furred burrowing mammal having small eyes and fossorial forefeet; "Rats and moles are common pests that plague homeowners".